I wired up my SAFC tonight using these types of connections, only difference I think is that a spade connection plugs into one side:
Problem is, if I bump, tap or wiggle most of the wires the AFC and/or the car shuts off.
Now, I used the ones just like the picture, I believe they were 16-18 gauge. Given the diameter of the ECU wires should I have used smaller connectors like those above, OR....what sort of connections would you recommend?